Intersil ISL83491IBZ

收发器RS422，RS48510Mbps

Overview

The ISL83491IBZ is a BiCMOS powered Single Transceiver meets both the RS-485 and RS-422 standards for balanced communication. Unlike competitive devices, this Intersil family is specified for 10% tolerance supplies. It utilizes slew rate limited drivers which reduce EMI and minimizes reflections from improperly terminated transmission lines or un-terminated stubs in multi-drop and multipoint applications. Logic inputs accept signals in excess of 5.5V, making them compatible with 5V logic families. Receiver (Rx) inputs feature a fail-safe if open design, which ensures a logic high output if Rx inputs are floating. The device presents a single unit load to the RS-485 bus, which allows up to 32 transceivers on the network. Driver (Tx) outputs are short circuit protected, even for voltages exceeding the power supply voltage. Additionally, on-chip thermal shutdown circuitry disables the Tx outputs to prevent damage if power dissipation becomes excessive.

Features

Tube Package
Tube package
14 pin count

50 mV Receiver Hysteresis

Applications

There are a lot of Renesas Electronics America Inc.
ISL83491IBZ Drivers/Receivers/Transceivers applications.

• Wireless network systems
• Satellite communications networks
• Ethernet circuitry
• Wired telephone
• Cordless telephone
• Desktop PC
• Notebook
• Pocket PC
• Desktop radio
• Clock radio